package control
import (
+ "fmt"
+ "gerrit.o-ran-sc.org/r/ric-plt/e2ap/pkg/e2ap"
"gerrit.o-ran-sc.org/r/ric-plt/xapp-frame/pkg/xapp"
- "strconv"
"sync"
)
-//-----------------------------------------------------------------------------
-//
-//-----------------------------------------------------------------------------
-type Subscription struct {
- mutex sync.Mutex
- Seq uint16
- Active bool
- //
- Meid *xapp.RMRMeid
- RmrEndpoint // xapp endpoint
- Trans *Transaction
-}
-
-func (s *Subscription) String() string {
- s.mutex.Lock()
- defer s.mutex.Unlock()
- return strconv.FormatUint(uint64(s.Seq), 10) + "/" + s.RmrEndpoint.String() + "/" + s.Meid.RanName
-}
-
-func (s *Subscription) Confirmed() {
- s.mutex.Lock()
- defer s.mutex.Unlock()
- s.Active = true
-}
-
-func (s *Subscription) UnConfirmed() {
- s.mutex.Lock()
- defer s.mutex.Unlock()
- s.Active = false
-}
-
-func (s *Subscription) IsConfirmed() bool {
- s.mutex.Lock()
- defer s.mutex.Unlock()
- return s.Active
-}
-
-func (s *Subscription) SetTransaction(trans *Transaction) bool {
- s.mutex.Lock()
- defer s.mutex.Unlock()
- if s.Trans == nil {
- s.Trans = trans
- return true
- }
- return false
-}
-
-func (s *Subscription) UnSetTransaction(trans *Transaction) bool {
- s.mutex.Lock()
- defer s.mutex.Unlock()
- if trans == nil || trans == s.Trans {
- s.Trans = nil
- return true
- }
- return false
-}
-
-func (s *Subscription) GetTransaction() *Transaction {
- s.mutex.Lock()
- defer s.mutex.Unlock()
- return s.Trans
-}
-
-func (s *Subscription) SubRouteInfo(act Action) SubRouteInfo {
- s.mutex.Lock()
- defer s.mutex.Unlock()
- return SubRouteInfo{act, s.RmrEndpoint.Addr, s.RmrEndpoint.Port, s.Seq}
-}
-
//-----------------------------------------------------------------------------
//
//-----------------------------------------------------------------------------
type Registry struct {
- register map[uint16]*Subscription
- counter uint16
- mutex sync.Mutex
+ mutex sync.Mutex
+ register map[uint16]*Subscription
+ subIds []uint16
+ rtmgrClient *RtmgrClient
}
// This method should run as a constructor
-func (r *Registry) Initialize(seedsn uint16) {
+func (r *Registry) Initialize() {
r.register = make(map[uint16]*Subscription)
- r.counter = seedsn
+ var i uint16
+ for i = 0; i < 65535; i++ {
+ r.subIds = append(r.subIds, i+1)
+ }
}
// Reserves and returns the next free sequence number
-func (r *Registry) ReserveSubscription(endPoint RmrEndpoint, meid *xapp.RMRMeid) *Subscription {
- // Check is current SequenceNumber valid
- // Allocate next SequenceNumber value and retry N times
+func (r *Registry) AssignToSubscription(trans *Transaction, subReqMsg *e2ap.E2APSubscriptionRequest) (*Subscription, error) {
r.mutex.Lock()
defer r.mutex.Unlock()
- var subs *Subscription = nil
- var retrytimes uint16 = 1000
- for ; subs == nil && retrytimes > 0; retrytimes-- {
- sequenceNumber := r.counter
- if r.counter == 65535 {
- r.counter = 0
- } else {
- r.counter++
- }
+ if len(r.subIds) > 0 {
+ sequenceNumber := r.subIds[0]
+ r.subIds = r.subIds[1:]
if _, ok := r.register[sequenceNumber]; ok == false {
- r.register[sequenceNumber] = &Subscription{
- Seq: sequenceNumber,
- Active: false,
- RmrEndpoint: endPoint,
- Meid: meid,
- Trans: nil,
+ subs := &Subscription{
+ registry: r,
+ Seq: sequenceNumber,
+ Meid: trans.Meid,
+ }
+ err := subs.AddEndpoint(trans.GetEndpoint())
+ if err != nil {
+ return nil, err
}
- return r.register[sequenceNumber]
+ subs.SubReqMsg = subReqMsg
+
+ r.register[sequenceNumber] = subs
+ xapp.Logger.Debug("Registry: Create %s", subs.String())
+ xapp.Logger.Debug("Registry: substable=%v", r.register)
+ return subs, nil
}
}
- return nil
+ return nil, fmt.Errorf("Registry: Failed to reserves subscription")
}
func (r *Registry) GetSubscription(sn uint16) *Subscription {
r.mutex.Lock()
defer r.mutex.Unlock()
- xapp.Logger.Debug("Registry map: %v", r.register)
if _, ok := r.register[sn]; ok {
return r.register[sn]
}
return nil
}
-//This function releases the given id as unused in the register
-func (r *Registry) releaseSequenceNumber(sn uint16) bool {
+func (r *Registry) GetSubscriptionFirstMatch(ids []uint16) (*Subscription, error) {
+ r.mutex.Lock()
+ defer r.mutex.Unlock()
+ for _, id := range ids {
+ if _, ok := r.register[id]; ok {
+ return r.register[id], nil
+ }
+ }
+ return nil, fmt.Errorf("No valid subscription found with ids %v", ids)
+}
+
+func (r *Registry) DelSubscription(sn uint16) bool {
r.mutex.Lock()
defer r.mutex.Unlock()
if _, ok := r.register[sn]; ok {
+ subs := r.register[sn]
+ xapp.Logger.Debug("Registry: Delete %s", subs.String())
+ r.subIds = append(r.subIds, sn)
delete(r.register, sn)
+ xapp.Logger.Debug("Registry: substable=%v", r.register)
return true
- } else {
- return false
}
+ return false
}